Mahood Lake is a lake in the South Cariboo region of the Interior of British Columbia in Wells Gray Provincial Park. It is drained by the Mahood River, a tributary of the Clearwater River which has cut a deep canyon into Cambrian rocks and Pleistocene glacial moraines. Mahood Lake is fed by the short Canim River, which drains nearby Canim Lake to the west via Canim Falls and Mahood Falls.